SRF2012-670YA

Overview

The Bourns SRF2012-670YA is a surface-mount common mode choke designed for data line filtering applications. It features a dual-line configuration with an impedance of 67 Ohms at 100 MHz. The component supports a maximum DC current of 400 mA and exhibits a maximum DC resistance (DCR) of 250 mOhm per line. It operates within a temperature range of -55°C to +125°C and is rated for 50V DC. The device utilizes a wirewound construction with a ferrite core, ensuring high impedance for effective noise suppression in compact electronic designs.

Feature Summary

• Dual-line common mode choke architecture for differential signal integrity
• High impedance performance at 100 MHz for effective EMI suppression
• RoHS compliant and halogen-free construction for environmental safety
• Wide operating temperature range suitable for demanding environments

Applications

• Data line filtering in portable electronics
• Noise suppression for USB and high-speed interface circuits
• EMI mitigation in compact consumer devices

Procurement Notes

Verify the specific suffix 'YA' against the manufacturer's latest datasheet to confirm package dimensions and tape-and-reel specifications. Ensure that the 400mA current rating aligns with your circuit's peak load requirements. Confirm RoHS compliance status if required by your assembly standards. Cross-reference the DCR value with thermal management calculations to prevent excessive heating during operation.

Selection Notes

Select this component when space constraints require a small surface-mount footprint alongside moderate current handling capabilities. The 67 Ohm impedance at 100 MHz makes it suitable for suppressing noise on high-speed digital lines without significantly attenuating the desired signal. Consider the 250 mOhm DCR limit when designing for low voltage drop scenarios. Ensure the 50V DC rating exceeds the maximum potential difference across the lines in your application.

Part Context

This part belongs to the Bourns SRF2012 series of common mode chip inductors. The series is characterized by its wirewound technology and ferrite core construction, offering reliable performance in noise-sensitive applications. The SRF2012 form factor provides a standardized footprint for designers integrating common mode chokes into PCB layouts for data protection.

Replacement Considerations

Consult official substitution guides for equivalent parts from Bourns or other manufacturers. Verify that any substitute matches the 67 Ohm impedance at 100 MHz, 400mA current rating, and physical dimensions. Ensure compatibility with existing PCB footprints and soldering profiles.